/Engine/Source/Runtime/Experimental/FieldSystem/Source/FieldSystemEngine/Public/Field/FieldSystemComponent.h
FalloffUniformForce This function will dispatch a command to the physics thread to apply a linear force in a uniform direction. The force vector is weaker as it moves away from the center.
void ApplyUniformVectorFalloffForce ( bool Enabled, FVector Position, FVector Direction, float Radius, float Magnitude )